1. Introduzione
This manual provides detailed instructions for the proper use, setup, operation, maintenance, and troubleshooting of the Elitech VG-760 Digital HVAC Micron Vacuum Gauge. This device is designed for accurate vacuum measurement in HVAC and refrigeration systems, ensuring efficient and reliable performance.
The Elitech VG-760 is a robust digital vacuum gauge featuring a wide measurement range, high accuracy, and multiple measurement units. It is built with an IP65 rating for enhanced protection against environmental factors.
2. Informazioni di sicurezza
- Always wear appropriate personal protective equipment (PPE) when working with HVAC/R systems.
- Ensure the system is depressurized before connecting or disconnecting the vacuum gauge.
- Do not expose the gauge to extreme temperatures or corrosive substances.
- Handle the gauge with care to prevent damage to the sensor.
- Mantene u dispusitivu luntanu da i zitelli.
3. Produttu Finituview
The Elitech VG-760 Digital HVAC Micron Vacuum Gauge is designed for precise vacuum measurement. Its compact design and clear display make it suitable for various applications.
Figure 1: Elitech VG-760 Digital Vacuum Gauge, showing its compact design and digital display.
3.1 Funzioni chjave
- Wide Measurement Range: 0-19000 Microns.
- High Accuracy: ±10% or ±10 Micron.
- Multiple Measurement Units: inHg, Torr, psi, mbar, mTorr, Pa, micron, Kpa.
- Settable High/Low Pressure Alarms.
- IP65 Rated for enhanced protection.
- Long Battery Life: Up to 300 hours with 3 AA batteries.
3.2 Display and Button Functions
Figure 2: Elitech VG-760 display elements and button controls. 1. Battery Level, 2. Auto OFF (15 min), 3. Current Vacuum Value, 4. Units. Buttons: A (Backlight on/off), B (Power on/off), C (Switch units). Pressing A+B enables auto-off.
Figure 3: The Elitech VG-760 supports 8 different measurement units: inHg, Torr, psia, mbar, mTorr, Pa, micron, and kPa.
3.3 Filtering Components
Figura 4: Exploded view of the Elitech VG-760's multiple filtering system, including the O-ring, Filter Net, Filter Cotton, and 1/4" SAE Fitting, designed to protect the sensor from contaminants.
4. Setup
4.1 Unpacking
Upon receiving your Elitech VG-760, carefully unpack all components. The packing list typically includes:
Figure 5: Contents of the Elitech VG-760 package, including the vacuum gauge, user manual, AA batteries, zip bag, filter cotton, filter net, and O-rings.
- 1 x Vacuum Gauge
- 1 x Manuale d'utilizatore
- 3 x batterie AA
- 1 x Zip Bag
- 2 x Filter Cotton & Filter Net
- 2 x O-ring
4.2 Installazione di batterie
- Locate the battery compartment on the back of the gauge.
- Aprite a tappa di u compartimentu.
- Inserite 3 batterie AA, assicurendu a polarità curretta.
- Chiudere in modu sicuru u coperchiu di u compartimentu di a batteria.
4.3 Connecting to the System
The VG-760 features a 1/4" SAE male flare fitting for connection to HVAC/R systems. Ensure all connections are tight to prevent leaks.
Video 1: Demonstrates how to connect the Elitech VG-760 to an HVAC system using a T-connector and bend adapter for vacuum measurement. It highlights the oil-proof film protection on the sensor and the process of attaching the gauge to a vacuum pump.
- Attach the VG-760 to the system using appropriate fittings (e.g., T-connector and bend adapter).
- Ensure the connection is secure and leak-free.
5. Operating Instructions
5.1 Power On/Off
Press u putenza button (center button) to turn the gauge on or off.
5.2 Controlu di retroilluminazione
Press u Retroilluminazione button (left button) to toggle the display backlight on or off for improved visibility in various lighting conditions.
5.3 Unità di misura di commutazione
Press u UNITÀ button (right button) to cycle through the available measurement units: inHg, Torr, psi, mbar, mTorr, Pa, micron, and Kpa.
5.4 Funzione Auto-Off
The gauge features an auto-off function to conserve battery life. To enable or disable this feature, press and hold both the Retroilluminazione è putenza i buttoni simultaneamente.
5.5 Interpreting Readings
The gauge displays the vacuum value in real-time. If the display shows dashes (-----), it indicates that the current pressure exceeds the measurement range of the gauge (above 19,000 microns).
6. Mantenimentu
6.1 Pulizia di sensori
If the vacuum gauge sensor becomes contaminated with oil, it may display no value or inaccurate readings. In such cases, it is necessary to clean the vacuum sensor.
Video 2: Illustrates the importance of cleaning the vacuum sensor if it becomes contaminated with oil, as contamination can prevent accurate readings. The video shows how to access and clean the sensor using a solvent.
- Disconnect the gauge from the system.
- Carefully remove the 1/4" SAE fitting to expose the sensor.
- Use a suitable solvent (e.g., isopropyl alcohol) and a lint-free cloth or cotton swab to gently clean the sensor surface.
- Allow the sensor to dry completely before reassembling.
- Replace the O-ring, filter net, and filter cotton as needed to ensure proper sealing and filtration.
6.2 Cura Generale
- Store the gauge in its protective zip bag when not in use.
- Avoid dropping or subjecting the gauge to strong impacts.
- Asciugà l'esternu cun un soffiu, damp pannu secondu i bisogni. Ùn aduprate micca detergenti abrasivi.
7. Risoluzione di prublemi
| Prublemu | Causa Possibile | Soluzione |
|---|---|---|
| U misuratore ùn s'accende micca | Batterie morte o installate incorrectamente | Sustituite e batterie o verificate a polarità |
| Display shows dashes (-----) | Pressure is above 19,000 microns (out of range) | Continue evacuation until pressure drops within range |
| Inaccurate or no reading | Contaminated sensor (oil, debris) | Clean the vacuum sensor as per maintenance instructions |
| Inaccurate or no reading | System leak | Check all connections for leaks and repair as necessary |
8. Specificazioni
Figure 6: Elitech VG-760 dimensions and key technical specifications.
| Parametru | Valore |
|---|---|
| Dimensioni di u produttu | 4.92 x 1.38 x 2.76 inch |
| Pesu di l'articulu | 15.52 Ounces (0.6 lbs) |
| Numeru di mudellu di l'articulu | VG-760 |
| Batterie | 3 batterie AA (incluse) |
| U fabricatore | Elitech |
| Materiale | Plastica |
| Gamma di misura | 0-19000 micron |
| Accuratezza | ±10% or ±10 Micron |
| Temperature di funziunamentu | 0°F~140°F (-17.8°C~60°C) |
| Fitting | 1/4" SAE Male Flare |
| A vita di a batteria | Finu à 300 ore |
| Livellu di prutezzione | Classificazione IP65 |
9. Garanzia infurmazione
Elitech products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or contact Elitech customer support. Keep your purchase receipt as proof of purchase for warranty claims.
10. Assistenza Clienti
For technical assistance, troubleshooting, or any inquiries regarding your Elitech VG-760 Digital HVAC Micron Vacuum Gauge, please contact Elitech customer support.
- Supportu per email: Disponibile 24/7
- Assistenza telefonica: Available for US customers
Please visit the official Elitech websitu per l'infurmazioni di cuntattu è e risorse di supportu più aggiornate.
